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Renormalisation of composite operators in lattice perturbation theory with clover fermions: non-forward matrix elements

Göckeler, M.; Horsley, R.; Perlt, H.; Rakow, P.E.L.; Schäfer, A.; Schierholz, G. and Schiller, A. (2006) Renormalisation of composite operators in lattice perturbation theory with clover fermions: non-forward matrix elements. The European Physical Journal C - Particles and Fields, 48 (2). pp. 523-530. ISSN 1434-6052 (Online); 1434-6044 (Print)

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Official URL: http://www.eurphysj.org

Abstract

We consider the renormalisation of lattice QCD operators with one and two covariant derivatives related to the first and second moments of generalised parton distributions and meson distribution amplitudes. Employing the clover fermion action we calculate their non-forward quark matrix elements in one-loop lattice perturbation theory. For some representations of the hypercubic group commonly used in simulations we determine the sets of all possible mixing operators and compute the matrices of renormalisation factors in one-loop approximation. We describe how tadpole improvement is applied to the results.

Item Type:Article
Additional Information:LTH 698. arXiv number: arXiv:hep-lat/0605002v1. Published online: 24 October 2006. Issue: November 2006.
Uncontrolled Keywords:GENERALIZED PARTON DISTRIBUTIONS; QCD; MOMENTS
Subjects:Q Science > QC Physics
Departments, Research Centres and Related Units:Academic Faculties, Institutes and Research Centres > Faculty of Science > Department of Mathematical Sciences
DOI:10.1140/epjc/s10052-006-0031-7
Publisher's Statement:Please acknowledge the original source of publication.http://dx.doi.org/10.1140/epjc/s10052-006-0031-7 The original publication is available at www.springerlink.com. © Springer. Part of Springer Science+Business Media
Related URLs:
Refereed:No
Status:Published
ID Code:364
Deposited On:08 Jun 2009 10:17
Last Modified:20 May 2011 16:52

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